On Mon, Apr 27, 2026 at 12:45:51PM +0100, Kiryl Shutsemau (Meta) wrote: > Userfaultfd RWP will reuse the uffd-wp PTE bit to mark access-tracking > PTEs, alongside the write-protected ones it already marks. The bit's > meaning now depends on the VMA flag (WP or RWP), not on its name. > > Rename the kernel-internal names that describe the bit: > > - pte/pmd/huge_pte accessors (and swap variants) > - pgtable_supports_uffd() capability query > - SCAN_PTE_UFFD khugepaged enum > > The ftrace string emitted by mm_khugepaged_scan_pmd for this enum is > kept as "pte_uffd_wp" so existing trace-based tooling keeps matching. > > Pure mechanical rename -- no behavior change. > > Signed-off-by: Kiryl Shutsemau <[email protected]> > Assisted-by: Claude:claude-opus-4-6
Reviewed-by: Mike Rapoport (Microsoft) <[email protected]> -- Sincerely yours, Mike.
